Shirley's Two-year-old Granddaughter Carries Around With Her

Riddle: Shirley's two-year-old granddaughter carries around with her something Shirley recently purchased for her in the produce section of a local supermarket. The little girl has the item wrapped in a blanket, pretending it is her baby. She carries her "baby" with her everywhere she goes, and even sleeps with it at nighttime. However, the "baby" has no body, but consists of a brown head with two eyes and a mouth; or is it two eyes and a nose? Sometimes it is difficult to tell, but only the face of the baby peeks out from the surrounding blanket. What type of produce is this "baby" that Shirley's granddaughter carries around with her?